package com.kuaiyiwang.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {

    public String paymentInfo_ok(Integer id){
        return "线程池"+ Thread.currentThread().getName()+" paymentINfo_ok,Id="+id+"haha";
    }


//    public String paymentInfo_timeout(Integer id){
//        int timeNumber = 3;
//        try {
//            TimeUnit.SECONDS.sleep(timeNumber);
//        } catch (InterruptedException e) {
//            e.printStackTrace();
//        }
//        return "线程池"+ Thread.currentThread().getName()+" paymentInfo_timeout,Id="+id+"haha";
//    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value="3000")
    })
    public String paymentInfo_timeout(Integer id){

        //int error = 10/0; 运行时异常和超时异常，服务降级

        int timeNumber = 3;
        try {
            TimeUnit.SECONDS.sleep(timeNumber);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池"+ Thread.currentThread().getName()+" paymentInfo_timeout,Id="+id+"haha";
    }

    public String paymentInfo_TimeOutHandler(Integer id){
        return "调用接口中超时或异常，当前线程池的名字："+Thread.currentThread().getName();
    }

    //服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value="true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value="60")//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
        if(id<0){
            throw  new RuntimeException("******id不能为负数");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"\t"+"调用成功，流水号："+serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return "id不能为负数，请稍后再试，id="+id;
    }
}
